It depends on how you end up transacting. If you just transact in the way people are transacting now, sure, the fees will lift up while the market rate lifts up. This is something that has been happening for years now. However, with Lightning Network, people will be able to transact off-chain, and thus 'tackle' potentially expensive fees. It should bring back the micro transaction functionality, but that's something we will only know for sure when it's actually operational - right now we can only talk about what's theoretically possible.